struts2域物件屬性驅動方式傳值
阿新 • • 發佈：2019-01-26
【例】使用者登入
第一步：建立user域物件
package com.dwx.bean; public class User { private String username; private String password; public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }
第二步：建立action
package com.dwx.action; import com.dwx.bean.User; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; public class userAction extends ActionSupport{ private User user; public User getUser() { return user; } public void setUser(User user) { this.user = user; } @Override public String execute() throws Exception { if(user.getUsername().equals("admin")&&user.getPassword().equals("123")){ return SUCCESS; }else{ return ERROR; } } }
第三步：配置struts.xml
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <package name="default" extends="struts-default" namespace="/"> <action name="user" class="com.dwx.action.userAction"> <result>/success.jsp</result> <result name="error">/login.jsp</result> </action> </package> </struts>
第四步：建立login.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>使用者登入</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<center>
<s:form action="user" method="post">
<s:textfield name="user.username" label="使用者名稱"></s:textfield>
<s:password name="user.password" label="密碼"></s:password>
<s:submit value="登入"></s:submit>
</s:form>
</center>
</body>
</html>第五步：建立success.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>登入成功</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
歡迎您<s:property value="user.username"/>
</body>
</html>
